The study reviewed 153 patients who had surgery with the system. Fifty-eight of them reached the 12-month follow-up. Researchers measured the Oswestry Disability Indexes and the visual analog scale back and leg scores in patients, according to a Nov. 4 news release.
The mean ODI improved 36.8 points at six weeks and 46.2 points at 12 months. Mean VAS-back scores improved 54.9 points at six weeks and 58.4 points at 12 months, and VAS-leg scores improved 73.5 at six weeks and 72.3 points at 12 months.
“These results point to the potential of Tops becoming a new and exciting option for the treatment of degenerative spondylolisthesis that allows us to stabilize patients while preserving motion,” John Chi, MD, of Boston-based Harvard Medical School, said in the release.
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